Influence ofSlagging C haracteristic ofC oalA sh on the Perform ance ofPulverized C oalinto B F
SUN Zhonggui
Abstract：Scorification properties of coal ash in certain composition were forecasted by FactSage, which is software for analysis of dynamics. Reasons for the scorification at the tuyere was obtained by microcosmic analysis of PC sample and blockages from the belly pipe.Following conclusions can be obtained that scorification characteristics of PC was determined by basic matters and showed a positive correlation to CaO content in the CaO-Al2O3-SiO2-MgO slag system. In order to stabilize the scorification temperature at 1 650℃, CaO content should be controlled under 10%. Particle size of bituminite and lean coal should be under 74μm, meanwhile, cut down the amount of micro particles under 2μm.
Keywords：coal ashash fusion temperatureslag forming mechanismcoal performances
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 39-41,44 )